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Tesco Mobile Data Not Working? Get Back Online With This Guide

If your using a Tesco SIM and mobile data is not working on it, this can cease your online communications on the go.

In this guide, I’ll explain how you can find out which of the reasons is causing this issue and then how to fix it.

Why Is My Tesco Mobile Data Not Working?

  • You have run out of mobile data
  • APN settings are not set for Tesco mobile
  • The distance between your mobile phone and the closest cell tower is out of range
  • You’re in a well-insulated building, blocking connectivity
  • Airplane mode has accidentally been turned on
  • Tesco service is down
  • You’re out of Tesco coverage

How do I get mobile data to work on my Tesco mobile?

Check APN settings

If your APN settings are not set precisely to that of Tesco Mobile, it will interfere with your mobile data from accessing the network. Here are the details. Match them and see what needs to be changed.

  • Name: Tesco Internet
  • APN:
  • Proxy:
  • Port: 8080
  • Username: tescowap
  • Password: password
  • Server:
  • MMSC:
  • MMS proxy:
  • MMS port:8080
  • Authentication type: PAP

When setting up your APN on your mobile, your Wifi should be turned off when completing the process;


  • Go to ‘Settings’
  • Select ‘More’
  • Choose ‘Mobile Networks’
  • Click on ‘Access Point Names’
  • Choose ‘Menu’
  • Insert the APN settings for Tesco mobile
  • Save the information and exit


  • Select ‘Settings on your home screen
  • Choose ‘Cellular Data’ or ‘Mobile Data’
  • Select ‘Data Network’
  • Click on ‘APN’
  • Insert the APN settings for Tesco mobile

Setting up your APN is now complete. So verify if this method fixes your problem.

Tesco Mobile Data Roaming not Working

Tesco Mobile offers free roaming in Europe, and charge per MB when you are using your mobile network internationally.

Apart from every EU country, there are quite a few other countries that are included;

  • Austria
  • Azores
  • Belgium
  • Bulgaria
  • Canary Islands
  • Croatia
  • Republic of Cyprus
  • Czech Republic
  • Denmark
  • Estonia
  • Finland
  • France
  • French Guyana
  • Germany
  • Gibraltar
  • Greece
  • Guadeloupe
  • Guernsey
  • Hungary
  • Iceland
  • Ireland (Republic of)
  • Isle of Man
  • Jersey
  • Italy
  • Latvia
  • Liechtenstein
  • Lithuania
  • Luxembourg
  • Madeira
  • Malta
  • Martinique
  • Mayotte
  • Monaco
  • Netherlands
  • Norway
  • Poland
  • Portugal
  • Reunion
  • Romania
  • San Marino
  • Slovakia
  • Slovenia
  • Spain
  • St. Martin
  • St. Barts
  • Sweden
  • Switzerland
  • Vatican City

You can first check to see how much they would charge you by using this link or by taking a look on their mobile app.

Why is my Tesco mobile roaming not working?

Tesco Mobile can identify when you have left the UK and operating your phone abroad by automatically sending through a message confirming the charges for the country that you are in.

If your Tesco mobile roaming is not working, it may be due to;

  • Your monthly allowance is finished
  • The safety buffer activated for your mobile data usage is set too low
  • Your mobile device didn’t automatically pick up the new network

In some instances, leaving your Bluetooth on while you’re trying to connect can sometimes interfere with picking up the right network for your location, so turning this off may in fact fix the issue.

You can keep track of your balances by dialing 282 or by messaging BALANCE to 2112 which will be free from your Tesco mobile.

How to Activate my Tesco Roaming Data

You should not have to activate your roaming data with Tesco mobile as this is done for you by Tesco mobile, although, you may have to do this manually if the new network is not automatically picked up.

On Android

  • Select ‘Settings’
  • Click on ‘Connections’
  • Choose ‘Mobile Networks’
  • You should see ‘Data Roaming’ and can switch it on

On iPhone

  • Find ‘Settings’
  • Click on your Mobile Data Options
  • Switch your Data Roaming on

The manual setup of your Tesco mobile roaming is now complete.

Note, you may need to increase your safety buffer or purchase more data with Tesco mobile.

How do I activate my Tesco mobile data?

Activating your Tesco mobile data is straightforward for Android and iPhone users;

For Android

  • Go to ‘Settings’
  • Select ‘Connections’
  • Choose ‘Mobile Data’ or ‘Mobile Networks’
  • Select ‘Preferred Network Type’
  • Click on 4G (this will be automatic and may come up as 3G)

For iPhone

  • Go to ‘Settings’
  • Choose ‘Mobile Data’
  • Ensure Mobile data is turned on and click on ‘Mobile Data Options’
  • Choose ‘Voice and Data’
  • Pick ‘LTE’

The activation of your Tesco mobile data should now be finished.


If you enjoy doing your grocery shopping at Tesco, having Tesco as your mobile data network may just be the sweetest treat.

When you are experiencing issues with your Tesco mobile, remember to keep in mind the O2 infrastructure is what you’re using, so if they’re experiencing an outage, you will too.

For peace of mind, the customer service number is  0345 301 4455, and their operating hours are;

  • Monday – Friday, 8 am – 9 pm
  • Saturday, 8 am – 8 pm
  • Sunday, 10am – 6pm

We hope this guide has equipped you with enough information and steps to help you sort out your Tesco mobile data not working as quickly as you possibly can.


  • Over 15 years of experience writing about cybersecurity, software, apps, electronics, and general tech repairs.

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